Faced with global climate change and ecological crises, garden landscapes, as significant artificial green infrastructure, have become important carriers for mitigating climate change and ecological restoration. Nature-based Solutions (NbS), which integrate natural wisdom with human needs, offer strong guidance for building more open and inclusive garden landscapes, thereby promoting an ecological civilization strategy that liberates both nature and humanity. Traditional garden landscapes, constrained by historical background, social cognition, and technical conditions, have weakened the intrinsic ecological value of nature as an independent life form, leading to a series of issues such as low ecosystem service quality and insufficient social service functions for public. This paper addresses the problems of traditional garden landscapes in terms of ideological cognition, ecological functions, and public demands, and guides the construction and maintenance of garden landscapes based on the concepts and principles of NbS, resulting in the following main suggestions: (1) On the basis of traditional garden landscape philosophy, the understanding of natural science should be enhanced and fully recognize the autonomy and independence of nature; (2) the ecological function of nature needs to be prioritized in garden landscape construction, while enhancing its social, cultural, and economic functions, and promoting sustainable urban development through multi-functional landscapes; (3) The various components of garden landscapes are organic parts of the natural system, and should respond to the needs of nature and the public, allowing artificial structures to organically integrate with nature; (4) Native plants are the natural foundation and cultural soul of garden landscapes, and different combinations of native plants should be selected based on the natural environmental conditions of the garden and rationally configured; (5) The maintenance of garden landscapes should fully conform to the succession process of natural ecosystems, and achieve self-maintenance and renewal of the landscape with minimal intervention.